How many solar systems are there in the milky way?

The galactic center is an intense radio source known as Sagittarius A*, a supermassive black hole of 4,100 (± 0.03 million solar masses. This illustration shows what the surface of TRAPPIST-1f, one of the seven planets in the TRAPPIST-1 system, might look like. The apex of the Sun’s path, or solar apex, is the direction … Read more

Do gas giants have a solid surface?

These bodies are mostly composed of hydrogen at temperatures above the “hydrogen critical point”, which means that there is no clear boundary between solid, liquid and gas.  Do gas giants have a solid surface? The answer is that the two gas giants do not have a solid surface, and it would be impossible for a … Read more

Why do the gas giants have many moons?

Because gas giants are so massive, they are able to attract more satellites. The gas giants may be big, but the stars are much bigger. As such, they have much stronger gravitational fields. So when a hot Jupiter gets too close to its star, the star ends up stealing its moons. Why gas giants have … Read more


23 Saturn Facts | Awesome Facts about the planet Saturn

The planet Saturn has intrigued astronomers for centuries. Since it was first seen through a powerful telescope in the 17th Century, scientists have wondered what Saturn is made of, and how its rings came to be. Fortunately, nowadays we know a lot more about Saturn than we ever have before, after four successful missions. So, … Read more


23 Earth Facts | Fascinating Facts about the Planet Earth

We take our planet for granted. Though it doesn’t have the Rings of Saturn or the moons of Jupiter, it’s as intriguing and unique as of the others. People don’t tend to take as much interest in the Earth as other planets, probably because we’re living on it. But the fact of the matter is … Read more


22 Venus Facts | Cool Facts About the Planet Venus

There are many things to learn about Venus, from its extremely high temperatures to its low wind speeds, there are a lot of different Venus facts for us to learn. We don’t know as much about Venus as we do about Mars, but thanks to spacecrafts like Magellan, we know a lot more now than … Read more